Abstract
AbstractRecently, Li2FeSiO4 has been identified as one of the most attractive cathode materials for lithium‐ion batteries because it has the ability to exchange more than one Li+ per redox‐active transition‐metal ion. However, this material behavior has been difficult to realize at room temperature due to the redox reaction of Fe3+/Fe4+. In this article, Li2−xFe1−xAlxSiO4/C (x=0, 0.01, 0.03, 0.05, 0.08, 0.12, and 1) nanocomposites were synthesized by using a facile sol–gel method and shown to exhibit much improved electrochemical performance at room temperature. It was found that after doping, two charge–discharge potential plateaus could be clearly obtained. In particular, the examined system, Li1.97Fe0.97Al0.03SiO4/C showed the best electrochemical performance with 209.3 mAh g−1 at 0.2 C, corresponding to a release of 1.26 Li+ per molecule.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
